diff --git a/configure/RULES_TARGET b/configure/RULES_TARGET
index 42aeff5f1..8bf2d44e9 100644
--- a/configure/RULES_TARGET
+++ b/configure/RULES_TARGET
@@ -87,9 +87,11 @@ $$(SHRLIB_PREFIX)$(1)$$(SHRLIB_SUFFIX):$$($(1)_DLL_DEPLIBS)
 
 # Needed for -j parallel builds option
 ifeq ($$(SHARED_LIBRARIES),YES)
+ifdef SHRLIB_SUFFIX
 $$(INSTALL_LIB)/$$(LIB_PREFIX)$(1)$$(LIB_SUFFIX):  \
  $$(INSTALL_SHRLIB)/$$(SHRLIB_PREFIX)$(1)$$(SHRLIB_SUFFIX)
 endif
+endif
 
 endef